2163711923 has 2 divisors, whose sum is σ = 2163711924. Its totient is φ = 2163711922.

The previous prime is 2163711919. The next prime is 2163711931. The reversal of 2163711923 is 3291173612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2163711923 - 2² = 2163711919 is a prime.

It is not a weakly prime, because it can be changed into another prime (2163711943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081855961 + 1081855962.

It is an arithmetic number, because the mean of its divisors is an integer number (1081855962).

Almost surely, 2^2163711923 is an apocalyptic number.

2163711923 is a deficient number, since it is larger than the sum of its proper divisors (1).

2163711923 is an equidigital number, since it uses as much as digits as its factorization.

2163711923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 35.

The square root of 2163711923 is about 46515.7169459958. The cubic root of 2163711923 is about 1293.4008620829.

The spelling of 2163711923 in words is "two billion, one hundred sixty-three million, seven hundred eleven thousand, nine hundred twenty-three".